What Are Helical Piles, How Do They Work & Why Use Them?

Discover the Benefits of Helical Pile Foundation Systems

Foundations are one of the most important components of any structure. Whether supporting a residential addition, commercial building, retaining wall, solar array, or infrastructure project, a strong and reliable foundation is essential for long-term stability. Selecting the right foundation system early in the project can help avoid future structural problems and costly repairs. In situations where traditional foundations may not be practical, helical piles provide an effective and efficient alternative. In addition, helical piles can be an economical solution for repairs and/or reinforcement of existing foundations. 

What Are Helical Piles?

Helical piles, sometimes referred to as screw piles or helical piers, are deep foundation systems made of steel shafts with one or more helical plates welded to the shaft. These plates resemble large screws and allow the pile to be mechanically rotated into the ground. Once installed, they transfer structural loads to deeper, more stable soils capable of supporting the structure above.

Helical Pile Systems Can Be Used For:

• Residential Homes & Additions
• Commercial Buildings
• Retaining Walls
• Decks & Porches
• Solar Panel Systems
• Communication Towers
• Bridges & Infrastructure Projects
• Foundation Repairs & Underpinning Applications
  

How Do Helical Piles Work?

The installation process is straightforward and efficient:

1. Site Evaluation & Engineering Assessment - Soil conditions and structural requirements are analyzed to determine pile size, depth, spacing, and load requirements.
2. Mechanical Installation - Specialized equipment rotates the helical pile into the ground until it reaches the required torque and bearing capacity.
3. Load Transfer - The pile transfers structural loads into stronger soil layers below unstable or weak surface soils.
4. Connection to the Structure - Brackets or caps are attached to connect the pile system to the transfer the loads from the foundation or structural elements.
   

Why Use Helical Piles?



• Faster Installation
  Traditional concrete foundations often require excavation, formwork, pouring, and curing time. Helical piles can frequently be installed much faster, helping projects stay on schedule. Reduced installation time can mean faster project completion with less disruption to the site and therefore lower labor costs.
  
  
• Minimal Site Disturbance
  Helical piles require significantly less excavation than many conventional foundation systems. Minimal disturbance also means less cleanup and landscape restoration after installation. This can be especially valuable when working in confined access locations, near existing structures and on environmentally sensitive sites.
  
  
• Performance in Challenging Soil Conditions
  Poor conditions such as soft or expansive soils, loose fill materials and high groundwater can create major challenges for conventional foundations. Because the system extends to deeper stable layers, it can reduce settlement concerns. 
  
  
• Immediate High Load Capacity
  Helical piles are commonly used in underpinning projects where existing foundations have experienced settlement or movement. They can help stabilize and, in some cases, lift settled foundations. Unlike concrete systems that require curing time, helical piles can often support loads immediately after installation. This benefit is valuable when projects involve emergency repairs that require rapid structural stabilization. Also helical piles can achieve a much higher load capacity then traditional concrete footings. 
  

Are Helical Piles Right for Every Project?

While helical piles provide many advantages, they are not a one-size-fits-all solution. An evaluation by the experts at BUSTMANTE ENGINEERS Inc will influence foundation design decisions. It is important to determine:

• Soil characteristics
• Required load capacity
• Site constraints
• Long-term performance considerations
• Cost effectiveness
  

A Solution Designed for Your Unique Requirements

Helical piles have become an increasingly popular foundation solution because they offer speed, versatility, and dependable performance across a wide variety of projects. Their ability to provide strong support with minimal site disruption makes them a valuable option for both new construction and foundation repair applications.

At BUSTAMANTE ENGINEERS, understanding site conditions and selecting the right foundation approach is critical to long-term structural success. A professional engineering assessment helps ensure that each project receives a solution designed specifically for its unique requirements. Click to contact us online or call 215-340-6990 for a site evaluation to prevent future structural problems today.